FR2940101A1 - KERATIN FIBER OXIDATION DYEING COMPOSITION COMPRISING A FATTY BODY AND A 4,5-DIAMINOPYRAZOLE DERIVATIVE - Google Patents

Abstract

The subject of the present invention is a composition for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as the hair, comprising: A) at least 25% of fatty substances, B) one or more bases of oxidation chosen from 4,5-diaminopyrazoles and addition salts with an acid, C) one or more additional dye precursors different from the oxidation base defined under B), D) one or more oxidizing agents and optionally E) one or more alkaline agents. The composition according to the present invention is distinguished by its improved dyeing properties.

Description

The present invention relates to a composition for the oxidation dyeing of keratinous fibers. It is known to dye keratinous fibers and in particular human hair with dye compositions containing oxidation dyes, in particular oxidation dye precursors and color modifiers. Oxidation dye precursors, generally referred to as oxidation bases, are initially colorless or weakly colored compounds which, when combined with oxidizing products, can give rise to colored compounds and dyes by a process of oxidative condensation. These are generally compounds such as ortho- or para-phenylenediamines, ortho- or para-aminophenols and heterocyclic bases. It is also known that the shades obtained with these oxidation bases can be varied by combining them with couplers or color modifiers, the latter being generally chosen from meta-diaminobenzenes, meta-aminophenols, meta-diphenols and certain heterocyclic compounds such as indole compounds. The variety of molecules involved in oxidation bases and couplers makes it possible to obtain a rich palette of 25 colors. The so-called "permanent" coloration obtained by virtue of these oxidation dyes, also known as oxidation dyeing, must moreover satisfy a certain number of requirements. Thus, it must be harmless from the toxicological point of view, it must allow to obtain shades in the desired intensity and have good resistance to external aggressions such as light, bad weather, washing, permanent ripples. , sweating and friction.

The dyes must also make it possible to cover the white hairs, and finally be the least selective possible, that is to say to make it possible to obtain the lowest possible color differences throughout a single keratinous fiber, which comprises in general, differently sensitized (ie damaged) areas from tip to root. Many attempts have been made in the field of hair dyeing to improve dyeing properties using, for example, adjuvants. However, the choice of these adjuvants is delicate insofar as they must improve the dyeing properties of the dye compositions without harming the other properties of these compositions. In particular, these adjuvants must not adversely affect the lightening properties of the keratinous fibers and the application properties of the coloring.

The object of the present invention is to obtain new compositions for the oxidation dyeing of keratinous fibers which do not have the disadvantages of the prior art. More particularly, the object of the present invention is to obtain compositions for the oxidation of keratin fibers, having improved dyeing properties which make it possible to achieve the desired lightening and which are easy to mix and apply, in particular that do not flow and remain well located at the point of application. By improved dyeing properties is meant in particular an improvement in the power / intensity and / or homogeneity of the dye. Thus, this object is achieved by the present invention which relates to a composition for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as the hair, comprising, A) at least 25% fat, B) one or more oxidation bases chosen from 4,5-diaminopyrazoles and addition salts with an acid, C) one or more additional dye precursors other than the oxidation base defined under B), D) one or more oxidizing agents and optionally E) one or more alkaline agents. The composition according to the present invention is distinguished by its improved dyeing properties. In particular, the composition of the invention leads to colorations which have a good power and / or intensity and / or a good homogeneity of the color along the fiber between the tip and the hair root (also called the selectivity of coloring) and / or good chromaticity. The composition of the invention is applied without difficulty on keratin fibers, without casting. This composition also allows a lower degradation of keratin fibers during the coloring process. Finally, the colorations obtained using the compositions of the invention are stubborn, and resist the various external aggressions that can undergo keratin fibers. The subject of the present invention is also a process for dyeing keratin fibers using the composition in accordance with the invention.

The present invention also relates to a multi-compartment device for implementing the composition of the invention. The present invention relates to the use for the oxidation dyeing of keratinous fibers of the composition according to the invention. As has been mentioned, the composition of the invention comprises one or more fatty substances. The term "fatty substance" means an organic compound which is insoluble in water at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg) (solubility less than 5% and preferably less than 1%, more preferably less than 0%). , 1%). They have in their structure a chain of at least two siloxane groups or at least one hydrocarbon chain containing at least 6 carbon atoms. In addition, the fatty substances are generally soluble in organic solvents under the same conditions of temperature and pressure, such as, for example, chloroform, ethanol, benzene or decamethylcyclopentasiloxane. The fatty substances are in particular chosen from lower alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters, oils, in particular mineral, vegetable, animal or synthetic non-silicone oils, non-silicone waxes and silicones. It is recalled that for the purposes of the invention, the alcohols, esters and fatty acids more particularly have one or more linear or branched hydrocarbon groups, saturated or unsaturated, comprising 6 to 30 carbon atoms, which are optionally substituted, in particular by one or more hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise. As regards the lower alkanes, the latter preferably comprise from 6 to 16 carbon atoms and are linear or branched, optionally cyclic. For example, the alkanes may be chosen from hexane and dodecane, isoparaffins such as isohexadecane and isodecane. Non-silicone oils that can be used in the composition of the invention include, for example: hydrocarbon-based oils of animal origin, such as perhydrosqualene; hydrocarbon-based oils of vegetable origin, such as liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for instance triglycerides of heptanoic or octanoic acids or, for example, sunflower, corn or soybean oils, squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, triglycerides of caprylic / capric acids such as those sold by Stearineries Dubois or those sold under the names Miglyollz 810, 812 and 818 by the company Dynamit Nobel, jojoba oil, shea butter oil; hydrocarbons of more than 16 linear or branched carbon atoms, of mineral or synthetic origin, such as paraffin oils, volatile or not, and derivatives thereof, petrolatum, petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam O. partially fluorinated fluorinated oils; as fluorinated oils, mention may also be made of perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names "FLUTEC PC1" and "FLUTEC PC3" by BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050" and "PF 5060" by the company 3M, or bromoperfluorooctyl sold under the name "Foralkyl" by the company Atochem; nonafluoro-methoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine sold under the name "PF 5052" by the company 3M. The fatty alcohols that can be used as fatty substances in the composition of the invention are non-oxyalkylenated, saturated or unsaturated, linear or branched, and contain from 6 to 30 carbon atoms and more particularly from 8 to 30 carbon atoms, mention may be made of cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol.

The wax or non-silicone waxes that may be used in the composition of the invention are chosen in particular from Carnauba wax, Candelila wax, and Alfa wax, paraffin wax, ozokerite, vegetable waxes such as olive wax, rice wax, hydrogenated jojoba wax or absolute waxes of flowers such as the essential wax of blackcurrant flower sold by the company BERTIN (France), animal waxes such as waxes bees, or modified beeswaxes (cerabellina); other waxes or waxy raw materials that can be used according to the invention are, in particular, marine waxes, such as the one sold by SOPHIM under the reference M82, and polyethylene or polyolefin waxes in general. The fatty acids that may be used in the composition of the invention may be saturated or unsaturated and contain from 6 to 30 carbon atoms, in particular from 9 to 30 carbon atoms. They are chosen more particularly from myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid and isostearic acid. The esters are the saturated or unsaturated, linear or branched C1-C26 aliphatic or monohydric acid esters and saturated or unsaturated, linear or branched C1-C26 aliphatic or monohydric aliphatic polyalcohols, the total number of carbon of the esters being more particularly greater than or equal to 10. Monoesters include dihydroabietyl behenate; octyldodecyl behenate; isoketyl behenate; cetyl lactate; C12-C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso) stearyl octanoate isocetyl octanoate octyl octanoate; cetyl octanoate decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate isononyl isononanoate; isostearyl palmitate; methyl ricinoleate acetyl; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate; , styryl stearate, butyl stearate, butyl stearate, isobutyl stearate, dioctyl malate, hexyl laurate, 2-hexyldecyl laurate. Still within the scope of this variant, it is also possible to use esters of C 4 -C 22 di or tricarboxylic acids and of C 1 -C 22 alcohols and esters of mono di or tricarboxylic acids and of di alcohols. C2-C26 tri, tetra or pentahydroxy. These include: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-propyl adipate dioctyl adipate; diisostearyl adipate; dioctyl maleate glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythritol tetraoctanoate propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate, propylene dioctanoate glycol; neopentyl glycol diheptanoate; diethylene glycol diisanonate; and polyethylene glycol distearates. Among the esters mentioned above, it is preferred to use ethyl, isopropyl, myristyl, cetyl, stearyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, myristates of alkyls such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate and isononyl isononanate, cetyl octanoate. The composition may also comprise, as fatty ester, esters and diesters of C 6 -C 30, preferably C 12 -C 22, fatty acid sugars. It is recalled that the term "sugar" means oxygenated hydrocarbon compounds which have several alcohol functions, with or without an aldehyde or ketone function, and which contain at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides. Examples of suitable substitutes are sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives. especially alkylated, such as methylated derivatives such as methylglucose. The esters of sugars and fatty acids may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described above and of C 6 -C 30, preferably C 12 -C 22 fatty acids, linear or branched, saturated or unsaturated. If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise. The esters according to this variant may also be chosen from mono-, di-, tri- and tetraesters, polyesters and mixtures thereof.

These esters may be for example oleate, laurate, palmitate, myristate, behenate, co-coate, stearate, linoleate, linolenate, caprate, arachidonates, or mixtures thereof, such as, in particular, the mixed oleopalmitate, oleostearate and palmito-stearate esters. More particularly, the mono- and di-esters are used, and especially the mono- or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, sucrose, glucose or methylglucose. By way of example, mention may be made of the product sold under the name Glucate-DO by the company Amerchol, which is a methylglucose dioleate.

Mention may also be made, by way of examples, of esters or mixtures of esters of fatty acid sugar: the products sold under the names F160, F140, F110, F90, F70, SL40 by the company Crodesta, respectively denoting Sucrose stearates of 73% monoester and 27% di- and tri-ester, 61% monoester and 39% di-, tri- and tetraester, 52% monoester and 48% di-, tri- and tetraester, 45% monoester and 55% di-, tri- and tetraester, 39% monoester and 61% di-, tri- and tetraester, and sucrose mono-laurate; - the products sold under the name Ryoto Sugar Esters for example referenced. B370 and corresponding to sucrose behenate of 20% monoester and 80% di-triester-polyester; the sucrose mono-di-palmito-stearate marketed by Goldschmidt under the name Tegosoft PSE. The silicones that may be used in the composition of the present invention are volatile or cyclic, linear or branched volatile or non-volatile silicones, organic or non-organic, having a viscosity of 5 × 10 -6 to 2.5 m 2 / s at 25 ° C. C and preferably 1.10-5 to 1m2 / s. The silicones which can be used according to the invention can be in the form of oils, waxes, resins or gums. Preferably, the silicone is chosen from polydialkylsiloxanes, in particular polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly (oxyalkylene) groups, amino groups and alkoxy groups. Organopolysiloxanes are further defined in Walter Noll's "Chemistry and Technology of Silicones" (1968), Academie Press. They can be volatile or nonvolatile. When volatile, the silicones are more particularly chosen from those having a boiling point of between 60 ° C. and 260 ° C., and even more particularly from: cyclic polydialkylsiloxanes comprising from 3 to 7, preferably from 4 to at 5 silicon atoms. It is, for example, octamethylcyclotetrasiloxane sold in particular under the name Volatile Silicone 7207 by UNION CARBIDE or SILBIONE 1z 70045 V2 by RHODIA, decamethylcyclopentasiloxane sold under the name VOLATILE SILICONE 1z 7158 by UNION CARBIDÉ, and SILBIONE 70045 V5 by RHODIA, as well as their mixtures. Mention may also be made of cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the VOLATILE SILICONE @ FZ 3109 marketed by Union Carbide, of formula: ## STR2 ## with D ': The compounds of cyclic polydialkylsiloxanes with organic compounds derived from silicon, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50/50), and the mixture of octamethylcyclotetrasiloxane and oxy-1,1 '- (hexa-2,2,2', 2 ', 3,3'-trimethylsilyloxy) bis-neopentane; (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity less than or equal to 5 × 10 -6 m 2 / s at 25 ° C. It is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200" by the company Toray Silicone, silicones belonging to this class are also described in the article e published in Cosmetics and Toiletries, Vol. 91, Jan., 76, p. 27-32 - TODD & BYERS "Volatile Silicone fluids for cosmetics". Non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with the above organofunctional groups and mixtures thereof are preferably used.

These silicones are more particularly chosen from polydialkylsiloxanes, among which may be mentioned mainly polydimethylsiloxanes trimethylsilyl end groups. The viscosity of the silicones is measured at 25 ° C. according to ASTM 445 Appendix C.

Among these polydialkylsiloxanes, mention may be made, without limitation, of the following commercial products: SILBIONE oils of series 47 and 70,047 or MIRASIL oils marketed by RHODIA, such as, for example, 70,047 V 500,000 oil; oils of the MIRASIL series marketed by RHODIA; the oils of the 200 series of Dow Corning, such as DC200 having a viscosity of 60,000 mm 2 / s; - VISCASIL oils from GENERAL ELECTRIC and some oils from SF series (SF 96, SF 18) from GENERAL ELECTRIC. Mention may also be made of polydimethylsiloxanes with dimethylsilanol end groups known under the name of dimethiconol (CTFA), such as the oils of the 48 series from the company RHODIA. In this class of polydialkylsiloxanes, mention may also be made of the products sold under the names "ABIL WAX 9800 and 9801" by GOLDSCHMIDT, which are polydialkyl (Cl-C20) siloxanes.

The silicone gums that can be used in accordance with the invention are in particular polydialkylsiloxanes, preferably polydimethylsiloxanes having high average molecular weights of between 200,000 and 1,000,000 used alone or in a mixture in a solvent. This solvent may be chosen from volatile silicones, polydimethylsiloxane (PDMS) oils, polyphenylmethylsiloxane (PPMS) oils, isoparaffins, polyisobutylenes, methylene chloride, pentane, dodecane, tridecane or their mixtures. More particularly useful products according to the invention are mixtures such as: - mixtures formed from an end-hydroxylated polydimethylsiloxane, or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such that the product Q2 1401 marketed by the company Dow Corning; mixtures of a polydimethylsiloxane gum and a cyclic silicone such as the product SF 1214 Silicone Fluid from General Electric, this product is an SF 30 gum corresponding to a dimethicone, having a number average molecular weight of 500 Solubilized in SF 1202 Silicone Fluid corresponding to decamethylcyclopentasiloxane; mixtures of two PDMSs of different viscosities. and more particularly a PDMS gum and a PDMS oil, such as the product SF 1236 from the company General Electric. The product SF 1236 is the mixture of an SE 30 gum defined above having a viscosity of 20 m 2 / s and an SF 96 oil with a viscosity of 5 × 10 -6 m 2 / s. This product preferably comprises 15% of SE 30 gum and 85% of an SF 96 oil. The organopolysiloxane resins that can be used in accordance with the invention are crosslinked siloxane systems containing the units 2, 2SiO 2/2, R 3 SiO 1/2. , RSiO3 / 2 and SiO4 / 2 wherein R represents an alkyl having 1 to 16 carbon atoms. Among these products, those particularly preferred are those in which R denotes a C1-C4 lower alkyl group, more particularly methyl. These resins include the product marketed under the name "Dow Corning 593" or those sold under the names "SILICONE FLUID SS 4230 and SS 4267" by the company General Electric and which are silicones of dimethyl / trimethyl siloxane structure. Mention may also be made of the trimethylsiloxysilicate type resins sold in particular under the names X22-4914, X21-5034 and X21-5037 by the company Shin-Etsu. The organomodified silicones that can be used in accordance with the invention are silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon-based group. In addition to the silicones described above, the organomodified silicones may be polydiaryl siloxanes, in particular polydiphenylsiloxanes, and polyalkylarylsiloxanes functionalized with the organofunctional groups mentioned above. The polyalkylarylsiloxanes are especially chosen from polydimethyl / methylphenylsiloxanes, linear and / or branched polydimethyl / diphenylsiloxanes with a viscosity ranging from 1 × 10 -5 to 5 × 10 -2 m 2 / s at 25 ° C. Among these alkylarylsiloxanes, mention may be made by way of example of the products sold under the following names: the SILBIONE li oils of the 70 641 series from RHODIA; - RHODORSIL 70 633 and 763 series oils from RHODIA; DOW CORNING 556 COSMETIC GRAD FLUID oil from Dow Corning; the silicones of the PK series of BAYER, such as the product PK20; the silicones of the PN and PH series of BAYER, such as the PN 1000 and PH 1000 products; certain oils of the series SF of GENERAL ELECTRIC such as SF 1,023, SF 1154, SF 1250, SF 1265. Among the organomodified silicones, mention may be made of polyorganosiloxanes comprising: polyethyleneoxy and / or polypropyleneoxy groups optionally comprising C 6 -C 24 alkyl groups such as the products known as dimethicone copolyol sold by the company Dow Corning under the name DC 1248 or the oils SILWET L 722, L 7500, L 77, L 711 of the company UNION CARBIDE and the alkyl (C12) -methicone copolyol sold by the company Dow Corning under the name Q2 5200; substituted or unsubstituted amine groups such as the products sold under the name GP 4 Silicone Fluid and GP 7100 by the company Genesee or the products sold under the names Q2 8220 and Dow Corning 929 or 939 by the company Dow Corning. The substituted amino groups are, in particular, C1-C4 aminoalkyl groups; alkoxylated groups, such as the product marketed under the name "Silicone Copolymer F-755" by SWS Silicones and Abil Wax 2428, 2434 and 2440 by the company GOLDSCHMIDT. Preferably, the fatty substances are neither oxyalkylenated nor glycerolated. More particularly, the fatty substances are chosen from liquid or pasty compounds at ambient temperature and at atmospheric pressure. Preferably, the fatty substance is a liquid compound at a temperature of 25 ° C. and at atmospheric pressure. The fatty substances are preferably chosen from lower alkanes, fatty alcohols, fatty acid esters, fatty alcohol esters, oils, in particular mineral, vegetable or synthetic non-silicone oils, silicones. embodiment, the fatty substance (s) is (are) chosen from liquid petroleum jelly, polydecenes, fatty acid esters or liquid fatty alcohols, or mixtures thereof, in particular, the fatty substance (s) of the composition according to the invention are non-silicone. Alkanes or hydrocarbons and silicones are preferably chosen. The composition according to the invention comprises at least 25% fat. Preferably, the concentration of fatty substance is 25 to 80%, more preferably 25 to 65%, more preferably 30 to 55% of the total weight of the composition. The composition according to the invention comprises at least one oxidation base of the 4,5-diaminopyrazole type.

The 4,5 diaminopyrazole oxidation base preferably corresponds to the following general formula (I): embedded image in which: R 1, R 2, R 3, R 4 and R 5, identical or different, represent a hydrogen atom; a C1-C6 alkyl radical which is unsubstituted or substituted with at least one substituent chosen from among OR, with R identical or different, representing a hydrogen atom or an alkyl radical, and R6 is a hydrogen atom or a C1-alkyl radical; C6. The compounds of formula (I) may optionally be salified with strong mineral acids such as, for example, HCl, HBr, HI, H 2 SO 4, H 3 PO 4, or organic acids such as, for example, acetic, lactic, tartaric or citric acid. succinic, benzenesulfonic, para-toluenesulphonic, formic, or methanesulfonic. They may also be in the form of solvates, for example a hydrate, or a linear or branched alcohol solvate, such as ethanol or isopropanol.

By way of examples of 4; 5-diaminopyrazole derivatives which can be used according to the invention, mention may be made of the compounds described in DE-A-38 43 892, DE-A-41 33 957 and patent applications WO 94/08969. , WO 94/08970, FR-A-2,733,749 and DE-A-195,438,88 such as 4,5-diamino-1-methylpyrazole, 4,5-diamino-1- (2-hydroxyethyl) pyrazole, , 4,5-diamino-1- (4'-chlorobenzyl) pyrazole, 4,5-diamino-1,3-dimethylpyrazole, 4,5-diamino-3-methyl-1-phenylpyrazole, 4,5 diamino-1-methyl-3-phenylpyrazole, 4-amino-1,3-dimethyl-5-hydrazinopyrazole, 1-benzyl-4,5-diamino-3-methylpyrazole, 4,5-diamino-3- tert-butyl-1-methylpyrazole, 4,5-diamino-1-tert-butyl-3-methylpyrazole, 4,5-diamino-1 - ((3-hydroxyethyl) -3-methylpyrazole, 4,5 1-diamino-1-ethyl-3-methylpyrazole, 4,5-diamino-1-ethyl-3- (4'-methoxyphenyl) pyrazole, 4,5-diamino-1-ethyl-3-hydroxymethylpyrazole, 4, 5-diamino-3-hydroxymethyl-1-methylpyrazole, 4,5-diamino-3-hydroxymethyl-1-isopropylp yrazole, 4,5-diamino-3-methyl-1-isopropyl pyrazole, 4-amino-5- (2'-aminoethyl) amino-1,3-dimethyl pyrazole, and their addition salts. Even more preferred is 4,5-diamino-1- (2-hydroxyethyl) -1H-pyrazole and its salts, such as 4,5-diamino-1- (2-hydroxyethyl) -1H-pyrazole sulfate. of the following formula: H / O, NH 2 H ~ f ~ INH` EtOH. H2SO4 The amount of 4,5-diaminopyrazole oxidation bases and / or its addition salts with an acid varies from 0.005 to 10% by weight relative to the total weight of the composition, preferably between 0.05 and 1.5% . In addition to the 4,5-diaminopyrazole oxidation base, the composition contains one or more additional dye precursors. This or these additional dye precursors are chosen from among the different oxidation bases of 4,5-diaminopyrazoles and the couplers. The oxidation base (s) that can be used in the context of the present invention are chosen from those conventionally known in oxidation dyeing, and among which mention may especially be made of ortho- and para-phenylenediamines, double bases, ortho- and para- aminophenols, heterocyclic bases and the addition salts of these compounds with an acid. These oxidation bases may in particular be cationic.

The para-phenylenediamines that may be used in the context of the invention may especially be chosen from the following compounds of formula (II) and their addition salts with an acid: R 11 in which: R 8 represents a hydrogen atom, a radical C 1 -C 4 alkyl, C 1 -C 4 monohydroxyalkyl, C 2 -C 4 polyhydroxyalkyl, C 1 -C 4 alkoxy (C 1 -C 4) alkyl, C 1 -C 4 alkyl substituted by nitrogen, phenyl or 4'-amine. ophenyl; R 9 represents a hydrogen atom, a C 1 -C 4 alkyl, C 1 -C 4 monohydroxyalkyl, C 2 -C 4 polyhydroxyalkyl, C 1 -C 4 alkoxy (C 1 -C 4) alkyl or C 1 -C 4 alkyl substituted by a Nitrogen group; R8 and R9 may also form, with the nitrogen atom carrying them, a 5- or 6-membered nitrogenous heterocycle optionally substituted by one or more alkyl, hydroxy or urea groups; R 10 represents a hydrogen atom, a halogen atom such as a chlorine atom, a C 1 -C 4 alkyl, sulfo, carboxy, C 1 -C 4 monohydroxyalkyl or C 1 -C 4 hydroxyalkoxy, acetylaminoalkoxy radical; C1-C4, mesylaminoalkoxy C1-C4 or carbamoylaminoalkoxy C1-C4; R 11 represents a hydrogen atom, a halogen atom or a C 1 -C 4 alkyl radical. Among the nitrogen groups of formula (II) above, mention may in particular be made of amino, monoalkyl (C1-C4) amino, dialkyl (C1-C4) amino, trialkyl (C1-C4) amino, monohydroxyalkyl (C1- C4) amino, imidazolinium and ammonium. Among the para-phenylenediamines of formula (II) above, there may be mentioned more particularly para-phenylenediamine, para-tolylenediamine, 2-chloro-para-phenylenediamine, 2,3-dimethylpara-phenylenediamine, 2, 6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,5-dimethyl-para-phenylenediamine, N, N-dimethyl-para-phenylenediamine, N, N-diethyl-para-phenylenediamine, phenylenediamine, N, N-dipropyl-para-phenylenediamine, 4-amino-N, N-diethyl-3-methyl-aniline, 4-N, N-bis-3-hydroxyethyl) amino-2-methyl aniline, N, N-bis-3-hydroxyethyl paraphenylenediamine, 4-N, N-bis - ((3-hydroxyethyl) -amino-2-chloroaniline, 2- (3-hydroxyethyl) para-phenylenediamine, 2-fluoro-para-phenylenediamine, 2-isopropyl-para-phenylenediamine, N - ((3-hydroxypropyl) -para-phenylenediamine, 2-hydroxymethyl-para-phenylenediamine, N, N-dimethyl-3-methyl para-phenylenediamine, N, N- (ethyl, [3-hydroxyethyl) -p a-phenylenediamine, N - ((3-yl-dihydroxypropyl) -para-phenylenediamine, N- (4'-aminophenyl) -para-phenylenediamine, N-phenyl-para-phenylenediamine, 2- (3-hydroxyethyloxy-para) phenylenediamine, 2- (3-acetylaminoethyloxy-para-phenylenediamine, N - ((3-methoxyethyl) -para-phenylenediamine, 2-methyl-1-N- (3-hydroxyethyl-para-phenylenediamine, and their salts addition with an acid.

Of the para-phenylenediamines of formula (II) above, para-phenylenediamine, paratoluylenediamine, 2-isopropyl-para-phenylenediamine, 2- [3-hydroxyethyl-para-phenylenediamine, 2, are particularly preferred. 6-dimethyl-para-phenylenediamine, 2,6-diethyl-para-phenylenediamine, 2,3-dimethyl-para-phenylenediamine, 2-chloro-para-phenylenediamine, N, N-bis-3-hydroxyethyl paraphenylenediamine and their addition salts with an acid. Especially para-phenylenediamine and para-tolylenediamine, N, N bis (3-hydroxyethyl paraphenylenediamine) and their acid addition salts will be used.

According to the invention, double bases are understood to mean compounds comprising at least two aromatic rings bearing amino and / or hydroxyl groups. Among the double bases that can be used as oxidation bases in the composition in accordance with the invention, mention may be made especially of the compounds corresponding to the following formula (III) and their addition salts with an acid: NR16R17 NR18 19 R13 R12 R15 Y in which: Z1 and Z2, which may be identical or different, represent a hydroxyl radical or -NH2 may be substituted by a C1-C4 alkyl radical or by a Y bonding arm; the Y linkage arm represents an alkylene chain comprising of 1 to 14 carbon atoms, linear or branched may be interrupted or terminated by one or more nitrogenous groups and / or by one or more heteroatoms such as oxygen, sulfur or nitrogen, and optionally substituted by a or more hydroxyl or C1-C6 alkoxy radicals; R12 and R13 represent a hydrogen or halogen atom, a C1-C4 alkyl, C1-C4 monohydroxyalkyl, C2-C4 polyhydroxyalkyl, C1-C4 aminoalkyl radical or a Y linker arm; R14, R15, R16, R17, R18 and R19, which may be identical or different, represent a hydrogen atom, a linking arm Y or a C1-C4 alkyl radical; it being understood that the compounds of formula (III) have only one Y linker per molecule. Among the nitrogen groups of formula (III) above, mention may be made especially of amino, monoalkyl (C 1 -C 4) amino, dialkyl (C 1 -C 4) amino, trialkyl (C 1 -C 4) amino, monohydroxyalkyl (CI -C4) amino, imidazolinium and ammonium.

Among the double bases of formulas (III) above, mention may be made more particularly of N, N'-bis - ((3-hydroxyethyl) -N, N'-bis (4'-aminophenyl) -1,3 -diamino-propanol, N, N'-bis - ((3-hydroxyethyl) -N, N'-bis- (4'-aminophenyl) -ethylenediamine, N, N'-bis- (4-aminophenyl) - tetramethylenediamine, N, N'-bis - ((3-hydroxyethyl) -N, N'-bis- (4-aminophenyl) tetramethylenediamine, N, N'-bis- (4-methylaminophenyl) tetramethylenediamine, N, N'-bis (ethyl) -N, N'-bis (4'-amino-3'-methylphenyl) ethylenediamine, 1,8-bis (2,5-diaminophenoxy) -3, 5-dioxaoctane, and their addition salts with an acid.

Among these double bases of formula (III), N, N'-bis - ((3-hydroxyethyl) -N, N'-bis- (4'-aminophenyl) -1,3-diaminopropanol, 1, 8-bis- (2,5-diaminophenoxy) -3,5-dioxaoctane or one of their addition salts with an acid are particularly preferred The para-aminophenols that may be used in the context of the invention may especially be chosen among the compounds corresponding to the following formula (IV) and their addition salts with an acid: OH NH2 (IV) in which: R20 represents a hydrogen atom, a halogen atom such as fluorine, a radical C1-C4alkyl, C1-C4monohydroxyalkyl, C1-C4alkoxy (C1-C4) alkyl (C1-C4) or aminoalkylC1-C4, or hydroxyalkyl (C1-C4) aminoalkylC1-C4; R21 represents an atom of hydrogen or a halogen atom such as fluorine, a C1-C4 alkyl, C1-C4 monohydroxyalkyl, C2-C4 polyhydroxyalkyl, C1-C4 aminoalkyl, C1-C4 cyanoalkyl or C1-C4 alkoxy radicals; ) alkyl (C1-C4).

Among the para-aminophenols of formula (IV) above, mention may be made more particularly of para-aminophenol, 4-amino-3-methylphenol, 4-amino-3-fluoro-phenol and 4-amino-3. hydroxymethylphenol, 4-amino-2-methylphenol, 4-amino-2-hydroxymethylphenol, 4-amino-2-methoxymethylphenol, 4-amino-2-aminomethylphenol, 4- 2-amino-3-hydroxyethylaminomethyl) phenol, and their addition salts with an acid. Para-aminophenol and 4-amino-3-methyl-phenol are even more preferred. The ortho-aminophenols that can be used as oxidation bases in the context of the present invention are especially chosen from 2-amino-phenol, 2-amino-1-hydroxy-5-methyl-benzene, and 2-amino-phenol. amino-1-hydroxy-6-methyl-benzene, 5-acetamido-2-aminophenol, and their addition salts with an acid. Among the heterocyclic bases which can be used as oxidation bases in the composition in accordance with the invention, mention may be made more particularly of pyridine derivatives, pyrimidine derivatives and pyrazole derivatives, and their addition salts with an acid. Among the pyridine derivatives, there may be mentioned more particularly the compounds described for example in patents GB 1 026 978 and GB 1 153 196, such as 2,5-diaminopyridine, 2- (4-methoxyphenyl) amino-3- amino-pyridine, 2,3-diamino-6-methoxy-pyridine, 2-03-methoxyethyl) amino-3-amino-6-methoxy pyridine, 3,4-diamino-pyridine, and their addition salts with an acid. Among the pyrimidine derivatives, mention may be made more particularly of the compounds described for example in German Patent DE 2,359,399 or Japanese JP 88-169,571 and JP 91-10659 or patent applications WO 96/15765, such as 2,4, 5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine, la. 2,4-dihydroxy-5,6-diaminopyrimidine, 2,5,6-triaminopyrimidine, and pyrazolopyrimidine derivatives such as those mentioned in patent application FR-A-2,750,048 and among which mention may be made of pyrazolo - [1,5-a] -pyrimidine-3,7-diamine; 2,5-dimethyl-pyrazolo [1,5-a] pyrimidine-3,7-diamine; pyrazolo [1,5-a] pyrimidine-3,5-diamine; 2,7-dimethyl-pyrazolo [1,5-a] pyrimidine-3,5-diamine; 3-amino-pyrazolo [1,5-a] pyrimidin-7-ol; 3-amino-pyrazolo [1,5-a] pyrimidin-5-ol; 2- (3-Amino-pyrazolo [1,5-a] pyrimidin-7-ylamino) -ethanol; 2- (7-amino-pyrazolo [1,5-a] pyrimidin-3-ylamino) ethanol; 2 - [(3-Amino-pyrazolo [1,5-a] pyrimidin-7-yl) - (2-hydroxy-ethyl) amino] ethanol; 2 - [(7-amino-, pyrazolo [1,5-a] pyrimidin-3-yl) - (2-hydroxyethyl) amino] ethanol; 5,6-dimethylpyrazolo [1,5-a] pyrimidine-3,7-diamine; 2,6-dimethylpyrazolo [1,5-a] pyrimidine-3,7-diamine; 2,5, N7, N7-tetranethyl-pyrazolo [1,5-a] pyrimidine-3,7-diamine; 3-amino-5-methyl-7-imidazolylpropylamino-pyrazolo [1,5-a] pyrimidine; their addition salts and their tautomeric forms, when there is a tautomeric equilibrium. As pyrazole derivatives, mention may also be made of diamino N, N-dihydropyrazolopyrazolones and especially those described in application FR-A-2 886 136 such as the following compounds and their addition salts: 2,3-diamino-6 7-Dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 2-amino-3-ethylamino-6,7-dihydro-1H, SH-pyrazolo [1,2-a] pyrazol 1-amino-3-isopropylamino-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 2-amino-3- (pyrrolidin-1-yl) -1-yl 6,6-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 4,5-diamino-1,2-dimethyl-1,2-dihydro-pyrazol-3-one, 4 5-diamino-1,2-diethyl-1,2-dihydro-pyrazol-3-one, 4,5-diamino-1,2-di- (2-hydroxyethyl) -1,2-dihydro-pyrazol-3 -one, 2-amino-3- (2-hydroxyethyl) amino-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one, 2-amino-3-dimethylamino-6, 7-Dihydro-1H, 5'H-pyrazolo [1,2-a] pyrazol-1-one, 2,3-diamino-5,6,7,8-tetrahydro-1H, 6H-pyridazino [1,2-a] a) pyrazol-1-one, 4-amino-1,2-diethyl-5- (pyrrolidin-1-yl) -1,2-dihydro-pyrazol-3-one, 4-amino-5- (3- diméthyla mino-pyrrolidin-1-yl) -1,2-diethyl-1,2-dihydro-pyrazol-3-one, 2,3-diamino-6-hydroxy-6,7-dihydro-1H, 5H-pyrazolo [1 2-a] pyrazol-lone. It will be preferred to use 2,3-diamino-6,7-dihydro-1H, 5H-pyrazolo [1,2-a] pyrazol-1-one and / or an addition salt thereof. As cationic oxidation bases that can be used in the compositions according to the invention, mention may be made, for example, of the following compounds: para-phenylenediamines such as those described in particular in patent applications FR-A-2 766 177 and FR-A -2,766,178, para-aminophenols as described, for example, in patent applications FR-A-2,766,177 and FR-A-2,766,178, orthophenylenediamines as described, for example, in patent applications FR-A 2 782 718, FR-A-2 782 716 and FR-A-2 782 719, ortho-aminophenols or cationic double bases such as derivatives of bis (aminophenyl) alkylenediamine type described in FR-A patent applications. -2,766,179, as well as the cationic heterocyclic bases, these compounds carrying at least one quaternary nitrogen atom. Preferably, the cationic oxidation bases that can be used in the compositions according to the invention are cationic para-phenylenediamines. Advantageously, one variant consists in using cationic oxidation bases of paraphenylenediamine structure, at least one of the amine functions of which is a tertiary amine carrying a pyrrolidine ring, the molecule having at least one nitrogen atom. quaternized. Such bases are, for example, described in EP-A-1 348 695. The composition according to the invention preferably comprises a total amount of oxidation bases ranging from 0.0005 to 12% by weight relative to total weight of the composition. Preferably, it comprises a total amount of oxidation bases ranging from 0.005 to 8% by weight, and more preferably from 0.05 to 5% by weight, relative to the total weight of said composition. The coupler or couplers that can be used in the composition according to the invention are those conventionally used in oxidation dyeing compositions, that is to say meta-aminophenols, meta-phenylenediamines, meta-diphenols, naphthols and heterocyclic couplers such as that, for example, indole derivatives, indoline derivatives, sesamol and its derivatives, pyridine derivatives, pyrazolotriazole derivatives, pyrazolones, indazoles, benzimidazoles, benzothiazoles, benzoxazoles, 1,3-benzodioxoles, quinolines, and the addition salts of these compounds with an acid. These couplers are more particularly chosen from 2,4-diamino-1- (3-hydroxyethyloxy) -benzene, 2-methyl-5-amino-phenol, 5-N-O-hydroxyethyl) amino-2-methyl-phenol. , 3-amino-phenol, 1,3-dihydroxybenzene, 1,3-dihydroxy-2-methyl-benzene, 4-chloro-1,3-dihydroxybenzene, 2-amino-4- 3-hydroxyethylamino) -1-methoxybenzene, 1,3-diamino-benzene, 1,3-bis (2,4-diaminophenoxy) -propane, sesamol, 1-amino-2-methoxy-4 , 5-methylenedioxybenzene, α-naphthol, 6-hydroxyindole, 4-hydroxyindole, 4-hydroxy-N-methylindole, 6-hydroxyindoline, 2,6-dihydroxy- 4-methyl-pyridine, 1-H-3-methyl-pyrazol-5-one, 1-phenyl-3-methyl-pyrazol-5-one, 2-amino-3-hydroxypyridine, dimethylpyrazolo [3,2-c] -1,2,4-triazole, 2,6-dimethylpyrazolo [1,5-b] -1,2,4-triazole and their addition salts with an acid. The composition according to the invention generally comprises a total amount of couplers ranging from 0.0001 to 15% by weight relative to the total weight of the composition. Preferably, it comprises a total amount of couplers ranging from 0.001 to 10% by weight, and better still from 0.01 to 8% by weight, relative to the total weight of the composition.

The oxidation bases and couplers may be present in the compositions of the invention, in the form of addition salts, and in particular in the form of addition salts with an acid. The addition salts with an acid that can be used in the context of the invention are, in particular, chosen from hydrochlorides, hydrobromides, sulphates, citrates, succinates, tartrates, lactates, acetates, alkyl sulphates and alkylsulfonates. When the oxidation bases or couplers contain one or more carboxylic acid or sulphonic acid functions, addition salts with a base are conceivable. The addition salts with a base which can be used in the context of the dyeing compositions of the invention are then in particular those obtained with sodium hydroxide, potassium hydroxide, ammonia or amines. According to a particular embodiment of the invention, the composition comprises one or more additional oxidation bases and one or more couplers. According to one variant, the additional oxidation base is chosen from para-aminophenols, heterocyclic bases and addition salts with a corresponding acid.

The composition according to the present invention comprises one or more oxidizing agents. Such an oxidizing agent is chosen for example from peroxides such as hydrogen peroxide, urea peroxide, alkali metal bromates or ferricyanides, persalts such as perborates, percarbonates and persulfates. One or more oxidation-reduction enzymes such as laccases, peroxidases and 2-electron oxidoreductases (such as uricase) may also be used as the oxidizing agent, optionally in the presence of their respective donor or cofactor.

The use of hydrogen peroxide is particularly preferred. This oxidizing agent is advantageously constituted by a solution of hydrogen peroxide whose content may vary, more particularly, from about 1 to 40 volumes, and even more preferably from about 5 to 40 volumes.

The concentration of oxidizing agents of the composition of the invention is preferably from 0.1 to 20% by weight, preferably from 0.5 to 10% of the total weight of the composition. The composition of the invention preferably comprises one or more alkaline agents. This or these alkaline agents are for example chosen from ammonia, alkali metal carbonates or bicarbonates and in particular sodium or potassium carbonate or bicarbonate, alkanolamines such as mono-, di- and triethanolamines and their derivatives, oxyethylenated and / or oxypropylenated hydroxyalkylamines and ethylenediamines, sodium or potassium hydroxides, amino acids and in particular basic amino acids such as arginine or lysine and the following compounds of formula (V): R R22 24 jN -RN ~ R2s R25 (V) wherein: R is a propylene residue optionally substituted with a hydroxyl group or a C1-C4 alkyl radical; R22, R23, R24 and R25, which may be identical or different, represent a hydrogen atom, a C1-C4 alkyl radical or a C1-C4 hydroxyalkyl radical. According to a particular embodiment, the composition contains a small amount of ammonia, or even no ammonia. According to this embodiment, the composition preferably contains one or more alkanolamines, especially monoethanolamine or 2-amino-2-methyl-1-propanol. The concentration of alkaline agent (s) of the composition of the invention is preferably from 0.01 to 30%, and still more preferably from 0.1 to 20% of the total weight of the composition. The dye composition in accordance with the invention may also contain one or more direct dyes which may be chosen in particular from the nitro dyes of the benzene series, the azo direct dyes, the methine direct dyes, and their addition salts. These direct dyes may be nonionic, anionic or cationic in nature. The composition may also contain other compounds constituting the coloring medium. This coloring medium generally comprises water or a mixture of water and one or more organic solvent (s) acceptable (s), preferably water-soluble cosmetics. As examples of organic solvents, there may be mentioned alcohols such as ethyl alcohol, isopropyl alcohol, benzyl alcohol, and phenylethyl alcohol, or glycols or glycol ethers such as, for example for example, ethylene glycol monomethyl, monoethyl and monobutyl ethers, propylene glycol or its ethers such as, for example, propylene glycol monomethyl ether, butylene glycol, hexylene glycol, dipropylene glycol and diethylene glycol alkyl ethers, for example, monoethyl ether or monobutyl ether of diethylene glycol. The solvents may then be present in concentrations of between approximately 0.01 to 35% by weight and, preferably, between approximately 0.1 and 25% by weight relative to the total weight of the composition. Preferably the composition of the invention contains water. Even more preferably the water concentration can range from 10 to 70%, better from 20 to 55% of the total weight of the composition. The composition according to the invention may further contain one or more adjuvant (s) conventionally used in compositions for dyeing hair. By "adjuvant" is meant an additive, different from the aforementioned compounds. By way of examples of adjuvants that may be used, mention may be made of anionic, cationic, nonionic or amphoteric surfactants, anionic, zwitterionic or organic polymers, and in particular anionic, cationic, nonionic and nonionic polymers. other than associative celluloses according to antioxidants or reducing agents; penetrating agents; sequestering agents; the perfumes ; tampons; dispersants; conditioning agents such as, for example, volatile or non-volatile silicones, modified or unmodified; film-forming agents; ceramides; preservatives; opacifying agents; and anti-static agents. The adjuvants above are generally present in an amount for each of them between 0.01 and 20% by weight relative to the weight of the dye composition. Preferably the composition of the invention contains one or more surfactants. Preferably, the surfactant or surfactants are chosen from nonionic surfactants or from anionic surfactants. The anionic surfactants are more especially chosen from salts (in particular salts of alkali metals, in particular of sodium, ammonium salts, amine salts such as the salts of aminoalcohols or salts of alkaline earth metals such as magnesium ) alkyl sulphates, alkyl ether sulphates, alkylamidoethersulfates, alkylaryl polyethersulfates, sulphate mono-glycerides, alkylsulfonates, alkylamidesulfonates, alkylarylsulfonates, α-olefin sulphonates, paraffin sulphonates, alkylphosphates, alkyl ether phosphates, alkylsulphosuccinates, and the like; alkyl ether sulphosuccinates, alkylamide sulphosuccinates, alkyl sulphosuccinamates, zwitterionic or mixtures thereof, cationic, nonionic, amphoteric, ionic and amphoteric associative thickening mineral thickeners, the invention, alkylsulfoacetate agents, acylsarcosinates, acylisethionates and the like; N-acyltaurates, the salts of acids s such as oleic, ricinoleic, palmitic, stearic, coconut oil or hydrogenated coconut oil acids; salts of alkyl D galactoside uronic acids; acyl lactylates; salts of polyoxyalkylenated alkyl ether carboxylic acids, polyoxyalkylenated alkylarylether carboxylic acids, polyoxyalkylenated alkylamidoether carboxylic acids, in particular those containing from 2 to 50 ethylene oxide groups; and their mixtures.

It should be noted that the alkyl or acyl radical of these various compounds advantageously comprises from 6 to 24 carbon atoms, and preferably from 8 to 24 carbon atoms, and the aryl radical preferably denotes a phenyl or benzyl group.

The nonionic surfactants are more particularly chosen from mono or polyoxyalkylenated, mono- or polyglycerolated nonionic surfactants. The oxyalkylenated units are more particularly oxyethylenated units, oxypropylene, or their combination, preferably oxyethylenated.

As examples of oxyalkylenated nonionic surfactants, mention may be made of: oxyalkylenated (C 8 -C 24) alkyl phenols, • saturated or unsaturated, linear or branched, oxyalkylenated C 3 -C 30 alcohols, • linear or branched, oxyalkylenated, C 8 -C 30 saturated or unsaturated amides, • esters saturated or unsaturated linear or branched C8-C30 acids, and polyethylene glycols, • linear or branched, saturated or unsaturated C8-C30 acid esters, and polyoxyethylenated sorbitol, • oxyethylenated vegetable oils, saturated or not, • condensates of ethylene oxide and / or propylene oxide, among others, alone or in mixtures.

Surfactants having a number of moles of ethylene oxide and / or propylene of between 1 and 50, preferably between 2 and 30. Advantageously, the nonionic surfactants do not include oxypropylene units. According to a preferred embodiment of the invention, the oxyalkylenated nonionic surfactants are chosen from C 8 -C 30 oxyethylenated, C 18 -C 30, oxyethylenated alcohols. As an example of mono- or polyglycerolated nonionic surfactants, the C 8 -C 40 alcohols, mono- or polyglycerolated, are preferably used.

In particular, the mono- or poly-glycerolated C 8 -C 40 alcohols correspond to the following formula: ## STR2 ## in which R represents an alkyl or alkenyl radical, linear or branched, C8-C40, preferably C8-C30, and m represents a number ranging from 1 to 30 and preferably from 1 to 10. By way of example of suitable compounds in the context of the invention, it is possible to mention lauric alcohol with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 LAURYL ETHER), lauric alcohol with 1.5 moles of glycerol, oleic alcohol with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 OLEYL ETHER), oleic alcohol with 2 moles of glycerol (INCI name: POLYGLYCERYL-2 OLEYL ETHER), cetearyl alcohol with 2 moles of glycerol, cetearyl alcohol with 6 moles of glycerol, oleocetyl alcohol with 6 moles glycerol, and octadecanol 6 moles glycerol. The alcohol can be a mixture of alcohols in the same way that the value of m represents a statistical value, which means that in a commercial product several species of polyglycerolated fatty alcohols can coexist as a mixture. Among the mono- or poly-glycerolated alcohols, it is more particularly preferred to use the Cg / CIO alcohol with one mole of glycerol, the C12 / C12 alcohol with 1 mole of glycerol and the C12 alcohol with 1.5 mole of glycerol. Preferably, the surfactant present in the composition of the invention is a nonionic surfactant. The content of surfactants in the composition of the invention more particularly represents from 0.1 to 50% by weight, preferably from 0.5 to 30% by weight relative to the weight of the composition. Of course, those skilled in the art will take care to choose any adjuvant (s) mentioned above (s), so that the advantageous properties intrinsically attached to the compositions according to the are not, or not substantially, impaired by the addition (additions) contemplated. The pH of the composition according to the invention is generally between 3 and 12 approximately, preferably between 5 and 11 approximately, preferably 7 to 11. It can be adjusted to the desired value by means of acidifying or alkalizing agents usually used. dyeing keratinous fibers or even using conventional buffer systems. The alkaline agents are, for example, those described above. Acidifying agents include, for example, inorganic or organic acids such as hydrochloric acid, orthophosphoric acid, carboxylic acids such as tartaric acid, citric acid, lactic acid, or sulfonic acids.

The dye composition according to the invention may be in various forms, such as in the form of liquids, creams, gels, or in any other form suitable for dyeing keratinous fibers, and especially human hair.

The process of the present invention is a process in which the composition according to the present invention as defined above is applied to the fibers. The color can be revealed at acidic pH. neutral or alkaline and the oxidizing agent can be added just at the time of use or it can be implemented simultaneously or sequentially with the other compounds of the composition of the invention After a laying time generally ranging from 1 to 60 minutes approximately, preferably from 5 to approximately 45 minutes, the keratinous fibers are rinsed, optionally washed with shampoo and rinsed again, then dried. .

The composition according to the invention may result from the mixture of at least two compositions and preferably from 2 or 3 compositions, preferably an oxidizing composition comprising at least one oxidizing agent as defined above. One of the compositions may be anhydrous.

The invention also relates to a multi-compartment device or dye "kit" in which a first compartment contains a composition comprising the fatty substance or fats, a second compartment comprising the 4,5-diaminopyrazole oxidation base (s) and the additional dye precursor (s) and the optional alkaline agent (s) and a third compartment comprising the oxidizing agent (s), this third compartment possibly containing a portion of the fatty substances. In this embodiment, the composition comprising the one or more fatty substances may be anhydrous. For the purposes of the invention, the term "anhydrous composition" means a cosmetic composition having a water content of less than 5% by weight, preferably less than 2% by weight and even more preferably less than 1% by weight. weight relative to the weight of said composition. It should be noted that it is more particularly bound water, such as the water of crystallization of salts or traces of water absorbed by the raw materials used in the production of the compositions according to the invention.

According to a second embodiment, the device of the invention comprises a first compartment containing a composition comprising the one or more fatty substances and one or more oxidizing agents and a second compartment containing a composition, comprising the oxidation base (s). , 5-diaminopyrazoles, the additional dye precursor (s) and optionally one or more alkaline agents. This device can. be equipped with a means for delivering on the hair the desired mixture, such as the devices described in patent FR-A-2 586 913 in the name of the Applicant. According to a third embodiment, the device of the invention comprises a first compartment containing a composition comprising the fatty substance (s), the 4,5-diaminopyrazole oxidation base (s), the additional dye precursor (s), and optionally the alkali agent (s) and a second compartment containing one or more oxidizing agents. The present invention also relates to the use for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair, of a dye composition as defined above. The following examples are intended to illustrate the invention without limiting its scope.

EXAMPLE The following compositions were prepared: Composition 1 Concentration (g%) DISTEARDIMONIUM HECTORITY 3 OCTYLDODECANOL 11.5 GLYCOL DISTEARATE 8 VASELINE OIL 64.5 PROPYLENE CARBONATE 1 LAURETH-2 1 POLYSORBATE 21 11 Composition 2 concentration (g%) PENTASTIC DIETHYLENE TRIAMINE 1 ACID, PENTASODIC SALT IN 40% AQUEOUS SOLUTION SODIUM METABISULFITE 0.7 MONOETHANOLAMINE 14.5 1-METHYL-2,5-DIAMINOBENZENE 0.87 PARA-AMINOPHENOL 0.464 1-METHYL-2-HYDROXY-4- AMINO- 3.25 BENZENE 1H-PYRAZOLE-1-ETHANOL, 4.5-4 DIAMINO, SULFATE NATROSOL 250 HHR 1.5 (hydroxyethylcellulose) HEXYLENE GLYCOL 3 DIPROPYLENE GLYCOL 3 ETHYL ALCOHOL 8.25 PROPYLENEGLYCOL 6.2 ASCORBIC ACID 0, WATER Qs, 100 g Composition 3 Concentration (g%) 0.15 PENTACETIC DIETHYLENE TRIAMINE ACID, 40% AQUEOUS SOLUTION PENTASODIUM SALT HYDROGEN PEROXIDE 50 12% SOLUTION (200 VOLU OXYGEN WATER) SODIUM STANNATE 0 , 04 SODIUM PYROPHOSPHATE 0.03 VASELINE OIL 20 HEXADIMETHRINE CHLORID E (MA at 60% yr 0.25 water) POLYQUATERNIUM-6 (40% MA in water) 0.5 GLYCERIN 0.5 CETYLSTEARYL ALCOHOL (C16 / C18 30/70) 8 10 CETYLSTEARYLIC ALCOHOL OXYETHYLENE 3 (33 0E) COLZA ACID AMIDE OXYETHYLENE (4 1.3 0E) PROTECTED at 92.3% in water VITAMIN E 0.1 PHOSPHORIC ACID Qs pH 2.2 WATER QS 100 g The three compositions are mixed at the time of mixing use in the following proportions: 10 g of composition 1 with 4 g of composition 2 and 16 g of composition 3. The mixture is applied to strands of natural gray hair with 90% of white hair at a rate of 10 g of mix for 1 g of hair. After 30 minutes break, the hair is rinsed, washed with a standard shampoo and dried. Capillary staining is evaluated visually. Example 1 Light brown with intense red glare

Claims (19)

REVENDICATIONS1. Composition for the oxidation dyeing of keratinous fibers, comprising, A) at least 25% fat, 5. B) one or more oxidation bases selected from 4,5-diaminopyrazoles or its addition salts with a acid, C) one or more additional dye precursors different from the oxidation base defined under B), D) one or more oxidizing agents, and optionally E) one or more alkaline agents 2. Composition according to claim 1 characterized in that the one or more fatty substances are chosen from liquid or pasty compounds at ambient temperature and at atmospheric pressure. 3. Composition according to claim 2 characterized in that the one or more fatty substances are chosen from compounds which are liquid at ambient temperature and at atmospheric pressure. 4. Composition according to claim 1 or 2, characterized in that the fatty substance or fats are chosen from lower alkanes, fatty alcohols, fatty acids, fatty acid esters, fatty alcohol esters and oils. non-silicone, non-silicone waxes and silicones. 5. Composition according to claim 3 characterized in that the one or more fatty substances are chosen from alkanes. lower alcohols, fatty alcohols, fatty acid esters, fatty alcohol esters, non-silicone oils and silicones. 25 6. Composition according to any one of the preceding claims wherein the fatty substance is non-silicone. 7. Composition according to any one of the preceding claims, in which the 4,5-diaminopyrazole oxidation base corresponds to formula (I) in which: R1, R2, R3, R4 and R5, which are identical or different, represent a hydrogen atom; a C1-C6 alkyl radical which is unsubstituted or substituted with at least one substituent chosen from among OR, with R identical or different, representing a hydrogen atom or an alkyl radical, and R6 is a hydrogen atom or a C1-alkyl radical; C6. 8. Composition according to any one of the preceding claims wherein the 4,5-diaminopyrazole oxidation base is chosen from 4,5-diamino-1- (2-hydroxyethyl) -1H-pyrazole and its salts. 9. Composition according to any one of the preceding claims, characterized in that the additional dye precursor is selected from oxidation bases and couplers. 10. Composition according to the preceding claim, characterized in that the additional dye precursor is selected from ortho and para-phenylenediamine oxidation bases, double bases, ortho- and para-aminophenols, heterocyclic bases, and the addition salts of these compounds with an acid. 11. Composition according to the preceding claim, characterized in that the additional dye precursor is selected from para-aminophenol oxidation bases, heterocyclic bases, and the addition salts of these compounds with an acid. 12. Composition according to Claim 8, characterized in that the additional dye precursor is chosen from (I) meta-aminophenol couplers, meta-phenylenediamines, meta-diphenols, naphthols, heterocyclic couplers and the addition salts of these compounds with an acid, preferably meta-aminophenol and / or meta-phenylenediamine couplers. 13. Composition according to any one of the preceding claims, characterized in that the oxidizing agent is a peroxide, preferably hydrogen peroxide. 14. A composition according to any one of the preceding claims wherein the alkaline agent is ammonia or an alkanolamine, preferably an alkanolamine. 15. A process for dyeing keratinous fibers, characterized in that a composition as defined in any one of claims 1 to 13 is applied to the keratinous fibers for a time sufficient to develop the desired coloration. 16. A multi-compartment device comprising a first compartment which contains a composition comprising the fatty substance or fats, a second compartment comprising the 4,5-diaminopyrazole oxidation base (s) and the additional dye precursor (s) and the possible one or more alkaline agents and a third compartment comprising the oxidizing agent (s), this third compartment possibly containing a portion of the fatty substances; the 4,5-diaminopyrazole oxidation base (s), the fatty substance (s), the additional dye precursor (s), the oxidizing agent (s) and the optional alkaline agent (s) being defined according to any one of claims 1 to 14 17. A multi-compartment device comprising a first compartment which contains a composition comprising the fatty substance (s) and one or more oxidizing agents and a second compartment comprising the 4,5-diaminopyrazole oxidation base (s), the dye precursor (s) additional and any alkaline agents; the 4,5-diaminopyrazole oxidation base (s), the fatty substance (s), the additional dye precursor (s), the oxidizing agent (s) and the optional alkaline agent (s) being defined according to any one of Claims 1 to 14; . 18. A multi-compartment device comprising a first compartment containing a composition comprising the fatty substance (s), the 4,5-diaminopyrazole oxidation base (s), the additional dye precursor (s), the optional alkaline agent (s) and a second compartment containing one or more oxidizing agents; the 4,5-diaminopyrazole oxidation base (s), the fatty substance (s), the additional dye precursor (s), the oxidizing agent (s) and the optional alkaline agent (s) being defined according to any one of claims 1 to 14 19. Use for the oxidation dyeing of keratinous fibers of a composition as defined in any one of claims 1 to 14.15.